Figuring things out has less to do with intelligence and more to do with the way people learn new things. Since the world is made up of people who fall roughly into one of three classes of learner: Visual learners, auditory learners, and tactile / kinesthetic learners, it would be highly unlikely that absolutely everyone would find a particular task equally "easy" to learn. In other words, the Beryl devs can please some of the people some of the time but they can't please all of the people all of the time.